Hamburger maker



FIG. 1 is a perspective view of a hamburger maker showing our newdesign;

FIG. 2 is a top view thereof;

FIG. 3 is a left side view thereof; the right side view is a mirrorimage of the left side view;

FIG. 4 is a bottom view thereof;

FIG. 5 is a front view thereof; and,

FIG. 6 is a rear view thereof.

The ornamental design for a hamburger maker, as shown and described.